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GW&K Investment Management, LLC

GW&K Investment Management, LLC is a Mutual Fund institutional filer with the SEC under CIK 1082917, reporting 1,108 portfolio positions, with 20 historical 13F filings on file. Most recent reporting period: 2026-06-30.

A Form 13F reports a manager's US-listed stock and option positions only. It does not include real estate, private funds, bonds, cash or non-US holdings, so a 13F portfolio value is not the firm's total assets under management (AUM).

  • State of incorporation: MA
  • Filing type: 13F-HR
  • Latest reporting period: 2026-06-30
  • Last filed: 2026-08-12

Top 10 portfolio positions

The largest reported holdings in GW&K Investment Management, LLC's most recent 13F filing, ranked by reported market value.

  1. MACOM TECHNOLOGY SOLUTIONS H (MTSI)
  2. ADVANCED ENERGY INDUSTRIES (AEIS)
  3. SPX TECHNOLOGIES INC (SPXC)
  4. STERLING INFRASTRUCTURE INC (STRL)
  5. ITT INC (ITT)
  6. NOVANTA INC (NOVT)
  7. RBC BEARINGS INC (RBC)
  8. MOOG INC-CLASS A (MOG.A)
  9. ENTEGRIS INC (ENTG)
  10. API GROUP CORP (APG)
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